Adding-machine.



F. C. RINSCHE.

ADDING MACHINE.

APPLICATION FILED JULY 21,1913.

Patented Dec. 4,1917.

4 SHEETS-SHEET] F. C. RINSCHE.

ADDING MACHINE.

APPLICATION FILED JULY 21. 1913.

I 1/706/7267 Z I t M F. C. RINSCHE.

ADDING MACHINE.

' APPLICATION FILED JULY 21. 1913.

MN L

iv in F. C. RINSCHE.

ADDING MA'CHINE.

APPHCATION FILEDJULY 21.1913.

Patented Dec. 4, 1917.

4 SHEETSSHEET 4- UNITED STATES PATENT OFFICE.

FRANK C. RINSCI-IE, 013 DETROIT, MICHIGAN, ASSIGNOR '10 BURROUGHS ADDIN MACHINE COMPANY, 013 DETROIT, MICHIGAN, A. CORPORATION OF MICHIGAN.

ADDING-MACHINE.

Specification of Letters Patent. Patented Dec, 4,, 1917.

Application filed July 21, 1913, Serial No. 780,265.

Tosall whom it may concern:

Be it known that I, FRANK G. RrNsoHE, a citizen of the United States, residing at Detroit, .Wayne county, in the State of Michigan, have invented a certain new and useful Improvement in Adding-Machines, of which the following is a specification.

The present invention relates more especially to that type of adding or calculating machine which is key-driven as, for example, through the operation of depressible keys upon levers having segmental racks which gear with registering wheels. Reference may be had in this connection to prior Patents Nos. 1,016,501 and 1,023,168, issued February 6th. and April 16th, 1912, respectively, upon inventions of Allen A. Horton and W. J. Pasinski. In fact I have illustrated and shall hereinafter specifically describe a form of embodiment of my present invention which is especially adapted to the specific machine of said prior patents.

. The object of the present invention is to provide for preserving for reference purposes an indication of a total registered upon the wheels, this indication being effected as an incident to the turning to zero of said wheels. According to the present form of embodiment of my said invention, the indi cation is made upon an additional set of wheel which are indicating rather. than registering wheels in that there is no transfer-ring or carrying between them. The present invention does, however, extend to the matter of adding together the total prev served upon those indicating wheels and a total of amounts subsequently registered upon the regular set of wheels, this being effected by passing the total indication from the indicating wheels back to the regular registering wheels with which latter wheels there is associated the usual carrying mechanism. V

Such total indicating arrangement is useful in many matters of accounting, some of which will be hereinafter specified following a description of the particular form of embodiment of the invention which is here preferably disclosed.

Of the drawings which accompany and form part of this specification, Figure 1 represents in right side elevation a machine of the character disclosed in the aforesaid Horton and Pasinski patents, having an equipment embodying the present invention, the inclosing casing being illustrated in section and also certain cross rods and shafts; Fig. 2 is a partial plan view of the machine with some parts in horizontal section; Fig. 3 is a partial cross section of the accumulator and some associated parts Fig. 4 is a left side elevation of a front portion of the machine. with parts at normal; Fig. 5 is a similar view with parts adjusted for transferring the registered total to the indicating wheels; Figs. 6 and 7 are somewhat similar views but taken from the opposite or righthand side of the machine and illustrative of the arrangement for passing the indication from the indicating wheels back to the registering wheels, Fig. 6 being a right-side elevation similar to Fig. 1 and Fi 7 a section taken substantially on line 7-5? of Fig. 2; and Fig. 8 is a partial front elevation.

The machine proper needs no detailed description because it is fully disclosed in the aforesaid Horton and Pasinski patents. Suflice it to state that depression of keys D effects variable depression of lever F against spring pressure, and upon release of any depressed key the segmental rack F on said lever in rising turns the gear wheel I which, through.- ratchet and pawl connections, transmits the motion to the gear wheel L and the latter, through the planetary gearing illustrated in Figs. 3, 1 and 5, turns the registering wheel N. Then, in the case of turning the registering wheels to zero, the handle \V is pulled forward in opposition to spring and released with the result that the hooks R are pulled down and, through action upon studs 0 turn all of the regis tering wheels forward to the 9 position and units lever F is pulled down one step so that it will then advance the units registering. wheel from 9 to zero and the carrying mechanisms will take effect to advance all the other wheels from 9 to zero, all a fully described in said Horton and Pasinski patents.

For the purposes of the present invention an additional set of numbered wheels 20 is located in a forwardly-extending portion of the casing to show through sight openings 21 in the cover plate B, said wheels being carried in a rocking frame which also supports a set of intermediate gears 22 permanently in mesh with gear wheels 20 secured to said numbered wheels 20 respectively and adapted to mesh with gear wheels 23 secured to the hubs of the registering wheels N respectively (see Fig. 3). This arrangement provides for connecting the indicating wheels with the registering wheels by rocking the frame, and then transmitting to the indicating wheels the same measure of movement which is imparted to the registering wheels when the latter are turned forward to zero from varying positions. Obviously the amount registered at any time upon the registering wheels can thus be indicated upon the indicating wheels, the numerals being arranged upon the peripheries of the latter in reverse order as compared with the numerals upon the registering wheels so that, for example, in turning a registering wheel forward from 9 to Zero, the associated indicating wheel will be turned from zero to 9.

The rocking frame is composed of vertically-extending side plates 2% journaled at their lower ends upon a fixed cross rod .25 of the machine proper and connected by tie rods 26; and intermediate vertically-extend ing plates 24? (Fig. 8) through which said tie rods also extend and which have rearwardly-extending arms 2i" at their upper portions for supporting studs 22 upon which the intermediate gears 22 are journaled (Fig. 2). These side and intermediate plates also supply bearings for a shaft 28 upon which the indicating wheels 20 turn, which shaft, as will be explained hereinafter, is rotatable for the purpose ofturning said indicating wheels to zero. It will be observed that the side plates extend forward from the rod 25 and then upward so that the weight of the major portion of the frame and of the indicating wheels and other parts mounted in the frame is well forward of the pivotal mounting of the frame upon said rod, so that all of the weight tends to rock the frame forward and is amply suflicient to normally hold the indicating wheels out of engagement with the registering wheels, as illustrated in Figs. 1, 4 and 6, and to disengage them therefrom upon release of the key (presently to be described) whose depression rocks the frame rearward.

For the purpose of rocking the indicating wheels into mesh with the registering wheels at will, a key'29 is arranged at the forward left-hand portion of the. keyboard. This key surmounts a stem 29 (Figs. 2, 4 and 5) which slides through the keyboard plate E and at its lower end is pivotally connected to a rearwardly-extending'arm 30 of a lever which arm is upheld by a spring 30 whereby the key is likewise normally upheld. Said lever is journaled upon the cross-rod 25 and has an upwardly-extendin arm 30 whose end portion is twisted at rig t angles to loosely embrace a link or pitman 31 coupled to the left side plate of the rocking frame, as clearly illustrated in Fig. -i (see also Fig. 2). Pivotal connection between the link and the frame is made through the link being mounted upon a rock shaft 32 which is journaled in the side plates of the rocking frame. Said link extends a distance rear-wardly of the lever arm 30 to provide for continued movement of the lever after the rocking frame has come to the limit of its rearward movement, the purpose of which will hereinafter appear. Rearward movement of the rocking frame is limited by abutment of an offset lug 249 of the left side plate 24; against the forward edge of the side piece B of the frame of the machine proper (Figs. 2 and 4). I

A coiled spring 33 is mounted upon the link 31 between the rear side of the lever arm 30 and a nut 31L on the link so as to provide for movement of the rocking frame immediately upon depression of the key, the said spring being superior to the weight of the frame and what it carries forward of its pivot.

It will be clear from the above that depression of the key 29, followed by pulling of the handle W and the release of the latter while the key 29 is kept down, will result in turning the indicating wheels 20 distances corresponding with the advance of the registering wheels N from varying registration positions to zero, so that the indicating wheels, at the conclusion of the operation, will show the registration or total which was upon the wheels N, owing to the reversed arrangement of numerals on the said wheels 20.

The above mentioned provision for further movement of the key 29 and lever 30 has to do with unlocking of the indicating wheels.-- It is desirable that these wheels be normally locked so as to prevent accidental disturbance of the indication. To this end detents 36 are mounted loosely upon a cross rod 37 extending through ears 24 on the side and intermediate plates of the rocking frame,

the said detents being laterally confined be-- tween said plates and sleeves 37 on the rod, (Fig. 8). The lower ends of said detents are connected by springs 38 with another cross rod 39 which is supported in other forwardly projecting ears 24 of said side and intermediate plates as shown in Fig. 7. The springs normally hold the detents engaged with the indicator gear wheels, as shown in Fig. 4, but when the intermediate gears 22 have fully meshed with the registering gear wheels 23 the detents are withdrawn. This is effected through the operation of a bail nipon the lower arms of the detents under actuation of the forwardly extending arm 30 of the lever 30. Said bail comprises side arms 40, fastened to the rock shaft 32 and a cross rod 41 extending in front of the downwardly pro ecting arms of all the detents. An arln 42, also secured to said rock shaft 32 at the left-hand end portion thereof (being preferably integral with the left side arm 40 of said bail Fig. 8) projects forwardly over the upturned end of the lever arm 30", as illustrated in Fig. 4. In the first part of the movement of the lever 30 under actuation of the key 29 there is no relative movement between the lever arm 30 and the bail since the frame 24 is rocked upon the same center as the lever 30 and the spring 33 does not yield. However, when the intermediate gears 22 have fully meshed with the registering gears 23, the rocking frame is prevented from swinging farther rearward by reason of abutment of the lug 24 against the main frame piece B. Then,

under continued finger pressure on key 29, said spring does yield and the forwardly extending arm 30 of the key lever moves farther upward and acts upon the bail arm 42 rocking the bail upward and thereby disengaging the detents 36 from the indicator gear wheels, as illustrated in Fig. 5. It will be noted that the unlocking does not occur until the indicator gears are in full mesh with the registering gears and of course the converse is true, viz. that the indicating gears become relocked before unmeshing from registering gears. Thus, there can be no turning of the indicating wheels independently of the registering wheels.

Taking up next the matter of passing the indicated amount or total back to the registering wheels, this is accomplished by turning the indicating wheels forward to zero while in mesh with the registering wheels. Another special key 50 is employed in this connection, being preferably located at the forward right-hand portion of the machine, as illustrated in Fig. 2 where its stem 50 appears in cross section, said stem passing through a slot in the cover-plate B. As before mentioned, the shaft 28 upon which the indicating wheels 20 are mounted is rotatable. This is for the purpose of turning said wheels to zero, and to this end said shaft is formed with a longitudinal ratchet groove 28 for engagement with pawls 51 mounted upon the indicator gear wheels 2O as illustrated in Fig. 5, and spring pressed into engagement with the shaft, the hubs 20 of the wheels being cut away to accommodate said pawls. This is a familiar form of zeroizing means, the shaft in rotation picking ,up the wheels and turning them fro-m varying positions to zero positions. Depression of the key 50 rotates said shaft in a direction to effect this zeroizing, through mechanism presently to be described. The key; stem 50 is slotted longitudinally to embrace guiding studs 52 upon the right-side piece B of the frame- 1 shaft 28 and the wheels.

work of the machine and is normally upheld by a spring 53 (Fig. 6). Said key stem has a forwardly extending arm 50 to which is pivotally connected the lower end of a rack bar 54. longitudinally slotted to embrace a guiding stud 55 upon the right-hand side plate 24 of the'rocking frame. The rack of said bar faces rearwardly and meshes with a pinion 56 which is loosely mounted u on a journal stud 57 carried by said side p ate of the rocking frame. The pinion is unified with a gear wheel 58 which meshes with a pinion 59 fast upon the shaft 28. When the key 50 is depressed the rack'of course moves downward, the pinion 56 and gear wheel 58 are turned in the direction of the arrow (Fig. 6) and the shaft 28 turned in the opposite direction which is the direction of the indicating rotation of the wheels 20 and the direction which will cause the abrupt side of the ratchet notch 28 to engage the ends of the pick-up pawls 51 and turn the wheels through the medium of said pawls. Rotation of the shaft 28 in the opposite direction when the key is released and rises to its normal position of course has no effect to turn the indicating wheels owing to the ratchet and pawl relation which exists between the Since the numerals on the indicating wheels run reversely to those on the registering wheels, this turning of the indicating wheels to zero may be considered as a backward turning, the same as the turning thereof for indicating purposes, notwithstanding the direction of turning is the same always as the direction of turning of the registering wheels.

The above described zeroizing of the indicator wheels can be practised either when said Wheels are disengaged from the registering wheels or when they are in mesh therewith. In the latter case the registering wheels will necessarily be advanced distances corresponding with the turning of the indicating wheels backward from varying positions, to zero position and thus the amount or total will be re-registered upon the registering wheels and, if the latter are already registering an amount or total, the indicated amount or total will be added to that upon the registering wheels, the regular transfer or carrying mechanisms of the latter taking care of any necessary transfers or carries of tens from lower to higher order wheels. It will be noted that the mounting of the rack 54 is such as to provide for a slight change in its angular relation to the key arm 50 when the frame 2% is rocked whereby the proper relation is maintained between the rack teeth and the pinion 56.

Of course, in order to bring about the transfer of an amount or total from the indicating wheels to the registering wheels it is essential that both of the special keys be depressed and, in order to insure correct operation, the key 29 should be fully depressed (or at least so far depressed as to fully mesh the indicator gears with the registering gears) before the key 50 is depressed at all. In order to insure the proper timing in this regard I provide an interlock between the key stem 50 and the rocking frame. The right side plate 24 of the latter is formed with a rearward extension 24 (Fig. 6) which carries a vertically extending rib 34:. The key stem 50 carries a stud 50 for cooperation with said rib. Normally the stud stands just in rear of the plane of the rear side of the rib, as shown in Fig. 6, and just above the plane of the top edge of the rib. Therefore the key will be blocked as the frame starts to swing rearward and will remain blocked until the frame has swung all the way rearward, for the proportion and relationship of parts is such that the frame must swing to the limit rearward before the stud 50 can pass down in front of the rib 34 This relationship between the stud and the rib also serves to keep the indicating and registering gears in mesh throughout the depression of the key 50, the length of the rib being such that the stud does not pass below it until the key 50 reaches the end of its downward movement. Then upon release of the key 29 the rocking frame swings forward carrying the rib to a point just forward of the stud 50 and the latter passes up along therear side of the rib when the key 50 is released. Of course when the latter key is depressed with the key 29 left atnormal, the stud passes down along the rear side of the rib and prevents operation of the key 29 during the zeroizing of the indicator wheels.

The registering wheels are normally locked against forward turning as in the case of the machine of the aforesaid Horton and Pasinski patents; and the means employed for such purpose are substantially the same as'shown in said patents. Thus pawls J (Figs. 4 and 5) are mounted upon a cross rod a in association with arms J also loosely mounted upon said cross rod and normally upheld by studs 7" on the registering levers F, the arms and pawls being connected together by springs 7' so that the pawls are also normally upheld in engagement with star wheels I The latter take the place of the lantern wheels similarly designated in the Horton and Pasinski patents, being unified with the gear wheels I which drive the registering numeral wheels as before stated. While the zeroizing operation of the machine proper involves unlocking of'the registering wheels in the manner explained in the Horton and Pasinski patents, and this would be sufficient so far as movement of said wheels is concerned when meshing with the indicating wheels for the passing of the registration to the latter wheels, it becomes necessary to otherwise unlock the registering wheels when the reverse operation is to be performed, towit the passing of the indicating amount or total from the indicating wheels back to the registering wheels, for in such case the latter wheels are neither unlocked by depression of the registering levers (all of which remain at normal) nor unlocked by the handle W which also remains at normal. In this connection it may be well to note here a slight departure from the arrangements shown in the Horton and Pasinski patents with respect to the locking pawls and arms. In the disclosure of those patents there is not a separate pawl and arm for the units registering wheel but a one piece member J Inasmuch as the units wheel is to be unlocked while the units registering lever F remains at normal,-in the case of passing an indicated amount or total back to the registering wheels from the indicating wheels,- a pawl and an arm relatively movable are employed for the units wheel and lever somewhat as for wheels and levers of other orders, as shown in Figs. 1 and 7. The arm J 2 is of the same form as that so designated in the Horton and Pasinski patents except for the omission of the detent tooth. The latter is upon a separate piece 60 loosely mounted upon the cross rod a and by a spring y" connected to the arm J the same as the pawls J are connected to the arms J by springs 7.

In canceling or zeroizing through operation of the handle W the rocking of the arms S results exactly as in the Horton and Pasinski constructions in depression of the arm J 2 through cooperation between the stud S of the right hand arm S and the lower branch of the arm J whereby the units registering lever F is depressed a single step, and in this operation the pawl 60 would disengage from the units star wheel I both by reason of its tendency to swing downward of its own weight and by reason of the engagement of the stud j of the arm J with the upper edge of the pawl. Obviously the latter may swing downward independently of the arm J the spring j yielding, as in the case of the similar springs connectmg the pawls J and arms J. This occurs in the present instance as a result of depression of the key 29, in order that,

should the key 50 be then depressed, the registering wheels will have been unlocked.

he means here shown for effecting this unlocking of the registering wheels comprise a rock shaft 61 journaled in the main frame of the machine and a series of upwardly projecting fingers 62 fast to said rock shaft and extending just in rear of the spring studs j on the pawls J and the pawl 60 respectively. A forwardly extending arm 63, fastened to the left-hand end of the rock shaft 61, is bifurcated at its forward extremity. to embrace a stud 64 on an arm which is virtually a rearward extension of the left side plate of the rocking frame 24 (see Figs. 2 and 4: to 7). Thus this arm 65 embraces the same cross rod or shaft 25 on which the said frame rocks and it extends forward of said rod and is fastened to said left-hand side plate of the frame by a screw '65. Consequently, when the frame rocks rearward to mesh its gear wheels with the registering gear wheels, the arm 65 is swung downward and takes with it the arm 63 so that the rock shaft 61 is turned and its fingers 62 caused to operate upon the studs 3' respectively and disengage the pawls J and 60 from the respective star wheels I as illustrated in Fig. 5. The lever 30 is mounted on the cross rod 25 between the arm 65 and the side plate 24 of the rocking frame and the forwardly projecting arm 30 of said lever passes above a spacing collar 65 on the screw 65 Said arm 30 may thus exert a leverage to aid in rocking the frame back to normal, under power of spring 30.

In an operation for transferring the indicated amount or total from the wheels 20 to the registering wheels N the former wheels will be unlocked just as in the case of passing a total from the registering wheels to the indicating wheels, as a result of depression of the key 29. When the other special key 50 is depressed without depressing the key 29, as when turning the indieating wheels to zero without passing the indication back to the registering wheels, the locking pawls 36 would not be rocked out of engagement with the indicating gears. In this connection it is to be noted that the locking engagement between said pawls and said gears is not a positive one, said pawls having V-shaped acting portions which enter between the teeth of the gears and frictionally lock the latter. This is sufficient .for preventing accidental movement of the gears but may be readily overcome by force'applied through finger pressure on the key 50.

Various advantageous uses of the indicating equipment above described will be more or less apparent. A few concrete examples may be mentioned. Shouldthe total of a series of additions such as performed when doing extension. or multiplication work total would. be passed to the indicating wheels and there preserved while the operations were gone through with again and then the total or product resulting from the new series of operations compared with that shown by the indicating wheels. Similarly, in verifying additions on successive pages of books, the total of items on one page could be transferred to the indicating Wheels and the turning back of pages to get totals of preceding additions rendered unnecessary. Then in cases where it is desired to verify a series of additions by. going through them again there is advantage over the custom heretofore pursued of noting down in pencil the first total, in that the pencil notation may inadvertently be put down wrong and the total resulting from going through the additions again, while actually agreeing with the previous registered total, would seem not to do so. Of course this would not occur i instead of noting down in pencil the first total it was transferred to, the indicating wheels. In so-called pro-rating the con stant could be advantageously shown uponthe indicating wheels and kept before the operator in this way when he is using it for further calculations.

These are only a few of the uses to which this indicating attachment can be put. Many others will readily occur to accountants.

I claim:

1. The combination with registering wheels of means for collectively turning said wheels from'varying positions to zero positions and in the same direction as when individually turning them, an additional set of wheels, and means for gearing the same at will to the registering wheels for turning thereby when the latter are being so turned from varying positions to zero.

2. The combination with registering wheels of means for collectively turning said wheels from varying positions to zero positions and in the same direction as when individually turning them, an additional set of wheels, and means for gearing the same at will to the registering wheels for turning thereby when the latter are being so turned from varying positions, together with means for collectively turning said additional wheels from varying positions to zero positions while geared to the registering wheels.

3. The combination with registering wheels of means for collectively turning said wheels from varying positions tozero positions and in the same direction as when individually turning them, an additional set of wheels, a rocking frame carrying the same, and intermediate gears in mesh therewith and adapted upon shifting of said frame to mesh also with the registering wheels for f,transmitting to the additional wheels the not agree with that on paper, the registered movement of the registering wheels from varying positions to zero positions.

4. The combination with registering wheels of means for collectively advancing said wheels from varying positions to zero positIOHS amadditional set of wheels, means for gearlng the same at will to the registering wheels for turning thereby when the latter are being so advanced from varying positlons, detents normally locking one set of wheels against turning, and means for displacing said detents as an incident to and in the act of gearing together that and the other set of wheels.

5. The combination with registering wheels of means for collectively advancing said wheels from varying positions to zero. positions, an additional set of wheels, means for gearing the same at will to the registering wheels for turning thereby when the latter are being so advanced from varying positions, detents normally locking both sets of wheels, and means for displacing all said detents as an incident to and in the act of gearing together the two sets of wheels.

6. The combination with registering wheels of means for collectively advancing said wheels from varying positions to zero positions, an additional set of wheels, a rocking frame carrying the same, intermediate gears in mesh therewith and adapted upon shifting of said frame to mesh also with the registering wheels for transmitting to the additional wheels the advance movement of the registering wheels from varying positions to zero positions, detents on said frame normally locking the additional wheels, and means for rocking the frame through yielding connections and by further movement displacing said detents.

7. The combination with registering wheels of means for collectively advancing said wheels from varying positions to zero positions, an additional set of wheels, a rocking frame carrying the same, intermediate gears in mesh therewith and adapted upon shifting of said frame to mesh also with the registering wheels for transmitting to the additional wheels the advance movement of the registering wheels from varying positions to zero positions, detents on said frame normally locking the additional Wheels, a bail for displacing the detents, a key-lever for operating upon said bail, and a link yieldingly connecting said lever and said rocking frame,

8. The combination with registering wheels of means for collectively advancing said wheels from varying positions to zero positions, an additional set of wheels, a rocking frame carrying the same, intermediate gears in mesh therewith and adapted upon shifting of said frame to mesh also with the registering wheels for transmitting to the additional wheels the advance movement of the registering wheels from varying positions to zero positions, detents normally locking the registering wheels against advance, a rock shaft having fingers engaging said detents, and crank connections between the said shaft and the rocking frame whereby shifting of the latter effects unlocking of the registering wheels.

9. The combination with registering wheels of means for collectively advancing said wheels from varying positions to zero positions; an additional set of wheels, a rocking frame carrying the same, intermediate gears in mesh therewith and adapted upon shifting of said frame to mesh also with the registering wheels for transmitting to the additional wheels the advance movement of the registering wheels from varying positions to zero positions, detents on said frame normally locking the additional wheels, means for rocking the frame through yielding connections and by further movement displacing said detents, detents normally locking the registering wheels against advance, a rock shaft having fingers engaging said detents, and crank connections between the said shaft and the rocking frame whereby shifting of the latter effects unlocking of the registering wheels.

10. The combination with registering wheels of means for collectively advancing 5 said wheels from varying positions to zero positions, an additional set of wheels, a. rocking frame carrying the same, intermediate gears in mesh therewith and adapted upon shifting of said frame to mesh also with the registering wheels for transmitting to the additional wheels the advance movement of the registering wheels from varying positions to zero positions, and means for turning said additional wheels from varying positions to zero positions while geared to the registering wheels, said means comprising a thrust key in fixed guides, a rack bar pivotally connected to said key and pivotally guided upon the rocking frame, and gear- 1 ing connecting said rack bar to the indicating wheels.

11. The combination with a set of accumulating wheels, and means for collectively advancing them from varying positions to zero positions; of an additional set of wheels reversely related to the first set, and means for gearing the wheels of said additional set to the wheels of the first set for turning thereby when the latter are being so advanced from varying positions to zero, whereby a registration thereon may be caused to appear upon the additional set of wheels by reason of the reversed registering relationship between the two sets of wheels. 1115 12. The combination with a set of accuulating wheels, and means for collectively advancing them from varying positions to zero position; of an additional set of wheels reversely related to the first set, and means for gearing the wheels of said additional set to the wheels of the first set for turning thereby when the latter are being so advanced from varying positions to zero, whereby a registration thereon may be caused to appear upon the additional set of wheels by reason of the reversed relationship between the two sets of wheels; together with means for collectively turning said additional set of wheels from varying positions to zero position while geared to the wheels transmitting to the additional wheels the advance movement of the wheels of the first set fromyarying positions to zero positions,

whereby a registratlon thereon may be 15 caused to appear upon the additional set of wheels by, reason of the reverse registering relationship between the two sets of wheels.

' FRANK C. RINSGHE. Witnessed byp R. W. FAIROHILD, R. S. MIELERT. 

